Physics
Classify the following amongst contact and non-contact forces —
(a) frictional force, (b) normal reaction force, (c) force of tension in a string, (d) gravitational force, (e) electrostatic force, (f) magnetic force.
Laws of Motion
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Answer
(a) Frictional force — Contact force
(b) normal reaction force — Contact force
(c) force of tension in a string — Contact force
(d) gravitational force — Non-contact force
(e) electrostatic force — Non-contact force
(f) magnetic force — Non-contact force
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